LUBRICATION THEORY FOR NEWTONIAN FLUIDS WITH STRIATED ROUGHNESS OR GROOVING

Earlier work by others concerning the effects of striated roughness and grooving upon the load-carrying capacity of lubricating films is summarized, substantiated, and generalized. A multiple-scale double-variable technique is used on such lubrication problems for the first time. The present analysis applies to one-face roughness having striation wavelengths sufficiently long for the applicability of Reynolds equation. Transient effects are included. The final differential equation for support pressure is simple in form. In addition to predicting the effects of striated 'Reynolds roughness, ' this equation can be directly used in grooved-bearing design.

  • Supplemental Notes:
    • Report on Mechanical and Fluid Dynamical Aspects of Problems Associated with Computer Technology. Task II. Ultra-Thin Gas Films.
  • Corporate Authors:

    Columbia University

    Lubrication Research Laboratory
    New York, NY  USA 
  • Authors:
    • Elrod, H G
  • Publication Date: 1972-8

Media Info

  • Pagination: 25 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00041270
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: Rpt no. 21 Tech Rpt
  • Files: TRIS
  • Created Date: Mar 2 1973 12:00AM